Monitoring your HDD using SMART and Nagios Monitoring of your computer systems is a good idea. There are many tools that let you verify that specified services are running, and available for clients. I use Nagios. You can check that Apache is still running, Postfix is still accepting mail, and various other things. If you […]
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cssh – cluster ssh Have you ever needed to do the same task on more than one machine at a time? If so, then clusterssh is the tool for you. From their homepage: ClusterSSH is a tool for making the same change on multiple servers at the same time. The ‘cssh’ command opens an administration
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Problems starting a jail with ezjail Over the weekend I was setting up a few FreeBSD jails to do some regression testing for the Bacula project. I had two already configured and running from my earlier work. My goal was to create a couple more and test multiple versions of databases etc. I found I
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Integrating the Tape Library with an existing Bacula installation In a recent article, I wrote about how to setup the various tools, such as mtx-changer, to allow your tape library to work with Bacula. In this article, I’ll show how I integrated this tape library into my existing Bacula configuration. Given the previous work, I
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Tape Libraries & Bacula I am attempting to revive a long unused-tape library. I want it active so I can go away on holiday and not worry about changing tapes. At present, I use a single DLT-7000 drive, which needs a new tape every three or four days. My strategy includes filling each tape, then
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Upgrading PostgreSQL From time to time, I need to upgrade PostgreSQL. When you are upgrading between minor revisions, you must dump and restore your databases. This article shows how I do this with FreeBSD 8.x and PostgreSQL 8.3, but this should be applicable to most other operating systems and versions of PostgreSQL. NOTE: If, for
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mailwrapper exited on signal 11 With software comes upgrades. I have been running FreeBSD 6.x on several servers at home. I recently upgraded them to 8.x, using 7.x as a stepping stone. The upgrade process went well. All systems are up and running. However, I have noticed one particular problem which I now know how
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logcheck – a log file scanner Every decent system generates logs. They are useful both from a forensic and from a debug point point of view. Some systems generate huge volumes of logs. Scanning those logs manually is both tedious and error-prone. This calls for an automated solution. Enter logcheck. Logcheck will scan your log
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spamd-setup gives 404 spamd is a wonderfully simple but amazingly effective spam fighting tool. It originated with the OpenBSD project. I’ve been using it since early 2007. This short post documents a situation I’ve seen a few people encounter lately. Background spamd-setup is usually run on a regular basis via cron. It can be used
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c partition goes away in FreeBSD 8 FreeBSD 8.0 will soon be released. It promised many new improvments. I’ve been upgrading some of my servers to 8.0 lately. Recently I encountered one interesting problem with disk partitions. It was easily fixed, but I thought I should document it because I know someone else is going
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